File Volume

I have a movie on my computer, but the sound is so quiet. It doesn’t sound right until I turn the volume and the speakers up all the way. This wreaks havoc on my ears when I switch functions and forget to turn down the volume. Is there anyway of making the movie play at a higher level? I hold out hope only because iTunes lets you play music at an amplified volume. I love this because the music drowns out other sounds from my computer (annoying beeps or sound effects from a game). Is there a new movie viewer I have to download?

Thanks…